Slip Rings
PRG - 90 Series
Ravioli Slip Ring Type PRG – provided
without housing – is available in a large number of different versions
and executions from 90mm to 350mm diameter. This specific feature allows
the users to avail themselves of a wide internal passage combined with a
nominal voltage which goes from a few tens to some hundreds Amperes.
Blade or copper-graphite or silver-graphite brushes for signals are
available, executions range from 4 to 36 rings 20/30/50/80/120/200 A.
This Ravioli Slip Ring PRG is specifically suitable for applications
that requires high voltages and optional central passages for tubes,
wires or metallic shafts.
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Main Features
-
Execution Without housing. It is necessary that housing has to be realized by end user according to the armonized rules to ensure an appropriate protection
- Positioning Vertical axis
- Inside passage 42mm diameter trough steel pipe for the passage of cable, hoist rope, hydraulic pipes or piston shaft.
- Connections Directly on the terminal box for the rings and on the brush-holders clamps.
- Brushes 50 A blade or copper-graphite
- Executions From 4 to 14 rings 50 A
Electrical Features
-
Rated Voltage 660 V ac - dc
- Rated Current Ith 50 A
- Degree protection IP 00
- Maximum speed 30 rpm
- Test Voltage 2,5 kV
- Operating Temperature - 20 °C + 60 °C
Regulations
EC:- 2014/35/UE
- 2014/30/UE
- 2006/42/CE
- RoHS 2011/65/UE
Rules:
- CEI EN 60947-5-1
- CEI EN 60529
Standard Executions
| 50A |
| Items | No. Rings | H-mm | F-mm | G-mm | P-mm |
| G G90D4L | 4 | 210 | 189 | 49 | 80 |
| G G90D6L | 6 | 250 | 235 | 49 | 120 |
| G G90D8L | 8 | 280 | 281 | 39 | 160 |
| G G90D10L | 10 | 330 | 304 | 49 | 200 |
| G G90D12L | 12 | 370 | 350 | 49 | 240 |
| G G90D14L | 14 | 400 | 396 | 39 | 280 |
For cooper-graphite executions the code is without the final letter 'L'.
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